IP address conflict!

**jmoore2001** · March 1st, 2004, 02:30 AM

My friend told me she had the following error:

Windows system error: there is an IP address conflict with another system on the network.

shes on some time of high speed connection offered at her apartment and running Windows XP, thats all I know. Any help would be great!

**davidamarkley** · March 1st, 2004, 02:35 AM

Just have her run these two commands.

Click "Start" -> "Run..." Type in 'cmd' (without quotes) and hit Enter.

Then type these in hitting enter after each command:

ipconfig /release

ipconfig /renew

Dave

**DVNT1** · March 1st, 2004, 08:07 AM

and if that doesn't work, call the ISP so they can help (because there is not much else she can do)

**Oleg21** · March 1st, 2004, 08:29 PM

Originally posted by jmoore2001
My friend told me she had the following error:

Windows system error: there is an IP address conflict with another system on the network.

shes on some time of high speed connection offered at her apartment and running Windows XP, thats all I know. Any help would be great!

Does she have NIC card and USB Modem Installed?
If yes you need to disable one of tham.

**excuzzzeme** · March 1st, 2004, 08:55 PM

It means that Your IP is shared by another computer on the same network. Has nothing to do with nic vs modem nor your ISP. No two computers can have the same ipaddress on the same network. To correct, do as "dave" instructed.

If you still can't get on or renew you need to make sure you have DHCP enabled. To check :

Right click "My Network Neighborhood"
"properties"
right click Local Area Connection
"properties"
highlight "Internet Protocol (TCPIP)"
properties
clikc the button "Obtain IP address automatically"
Same for "Obtain DNS address automatically"
close all windows normally
re-boot

Upon restart:
Your system will then negotiate for your Ip with the router that serves your network.
If you still cannot get on it is likely that IP's are assigned statically and you must see the system administrator for access.

**Ryanoffski** · March 1st, 2004, 09:38 PM

Originally posted by excuzzzeme
It means that Your IP is shared by another computer on the same network. Has nothing to do with nic vs modem nor your ISP. No two computers can have the same ipaddress on the same network. To correct, do as "dave" instructed.

If you still can't get on or renew you need to make sure you have DHCP enabled. To check :

Right click "My Network Neighborhood"
"properties"
right click Local Area Connection
"properties"
highlight "Internet Protocol (TCPIP)"
properties
clikc the button "Obtain IP address automatically"
Same for "Obtain DNS address automatically"
close all windows normally
re-boot

Upon restart:
Your system will then negotiate for your Ip with the router that serves your network.
If you still cannot get on it is likely that IP's are assigned statically and you must see the system administrator for access.

Though with Windows XP you shouldn't need to reboot. As soon as you click ok it will change and obtain the IP from the router.

**smunzli** · March 2nd, 2004, 10:11 AM

when did router's start handing out IP address?????????????

**Agent_Embryo** · March 2nd, 2004, 10:18 AM

Originally posted by smunzli
when did router's start handing out IP address?????????????

When they started coming with built-in DHCP servers.

**smunzli** · March 2nd, 2004, 10:32 AM

but the router is not handing out the IP, the DHCP server is.

**davidamarkley** · March 2nd, 2004, 10:35 AM

If you want to get technical, yes... the DHCP server hands out the IP addresses, but the DHCP server is builtin to the router.

Dave

**qsimpson** · March 24th, 2004, 11:53 AM

She let the computer go into hibernation which aloud the routers DHCP re-issue her IP. When the pc came out of hibernation it assumed that the ip was the same caused the conflict. A reboot will solve this problem.

**DVNT1** · March 24th, 2004, 02:26 PM

Originally posted by qsimpson
She let the computer go into hibernation which aloud the routers DHCP re-issue her IP. When the pc came out of hibernation it assumed that the ip was the same caused the conflict. A reboot will solve this problem.

Interesting theroy, but most DHCP servers will not give out the same IP in such a short time. Of course this varies with the DHCP setup and it []imay[/i] apply here.

**qsimpson** · March 29th, 2004, 05:31 PM

I have a Linksys WRT54g and it happened to me but not in a short time. I left my laptop in hibernation overnight and when I tried to bring it back online I got the same error message.

**Epyon9283** · March 29th, 2004, 05:41 PM

Increase the lease time and that wouldn't happen.

**davidamarkley** · March 29th, 2004, 05:49 PM

On a small home network, I like to set the lease time to "Infinite".

It's nice because the IPs for the boxes are always the same, and you never have to worry about IP conflicts.

Dave

**yohon125** · March 29th, 2004, 06:02 PM

i get this problem quit often here on the school network as do a lot of my friends. never seems to affect anything, but i will go check out those settings

**clessic** · August 26th, 2008, 05:34 AM

hhhh

**clessic** · August 26th, 2008, 05:39 AM

hey guyzz

please some one tell me i am facing some problem ..there is an IP address conflict with another system on the network.
although the following IP doesnt exit ont he network is it coz of verious are some thing else plzz guyzzz mail me any soultion

my id is .....clessic@hotmail.com

**nottechsavy** · September 2nd, 2008, 09:15 PM

i am having the same problem too. i have sbc dsl with a sounstream modem and a wireless router. i had it working before but after unplugging it due to some home repairs, this problem occured. i currently have 2 laptops into the network and everytime i turn one on, the other one is not able to connect and gives me an error message on one...and after a couple secs, the one that was working has the error message and so forth. i tried the tips above and it is still not resolving this problem. I think it maybe some settings on the router or modem that I need to change. Would love additional tips. thanks!

the cmd error:
An error occurred while renewing interface Local Area Connection : The DHCP clie
nt has obtained an IP address that is already in use on the network. The local i
nterface will be disabled until the DHCP client can obtain a new address.

**CLYDEGIRL** · May 16th, 2009, 05:36 PM

Hi there,

I'm also getting the Windows System Error IP conflict with another system on network...but I only have ONE computer....

My high speed is Canopy so I guess that means it's wireless.....I have a cable coming into the house and into my computer....

It's quite frustrating as it was working really well for about a month and now it disconnects me after a minute.